Colourful Tucan

[Peter Ward]

Not much to say really.

Big bright glob.

Southerly Dec.

Not great seeing or a lot of exposure (LRGB 20:20:10:15 mins)

But problably my favorite glob...(seen here in technicolor)

http://www.atscope.com.au/BRO/gallery15.html

[Hagar]

Hi Peter, you just have to love the detail in the core. What scope was used for this southern gem?
Very nice.

[telemarker]

Great image, beautifully coloured and the core is well resolved. I like it!!

[leon]

Yea, I like it too, the stars in there are just incredible, beautiful image Peter

Leon

[Peter Ward]

Thanks Leon, Keith, Doug!

To be frank it was a pretty lazy effort with the RCOS 14....then again significantly longer exposures probably would have led to purely white stars.

Swings and round-abouts :)

[DavidU]

Love the colors Peter ! I agree with you, much nicer with the 20:20:10:15
Beaut scope !

[troypiggo]

Can I ask some newbie questions? How come the R, G, and B are different length exposures? Shouldn't they be the same, unless you're after some false colour or something?

[Alchemy]

nicely resolved to the core.

[multiweb]

Nice colors and resolution. :thumbsup:

[Peter Ward]

The QE of (most) CCD cameras varies with the wavelength being captured. The camera I use is most sensitive in green, and less so in Red & Blue. Varying exposures helps to "even up the curve" and infact gives a much closer approximation to "true" colour than a straight 1:1:1 exposure ratio.

[troypiggo]

Interesting. Thanks for the explanation.

[Martin Pugh]

That particular globular cluster burns out in just a few seconds exposure, so you've done a great job resolving that core.

nice work Peter

Martin

[sjastro]

Peter,

I'm probably out on a limb here, but images of 47 Tucanae resolved to the core reduce this splendid globular to a run of the mill object.

Visually 47 Tucanae has a striking central condensation.

Astronomers classify globulars according to the degree of central condensation, astroimaging has essentially broken down this distinction.

It is still a fine image however.

Regards

Steven

[Peter Ward]

I must admit Steve, there was something about the dynamic of the image I didn't quite like, hence appreciate your input. I reprocessed the data making the core look a little hotter (though still resolved ;) ) and suspect it is an improvement....

[astroron]

I disagree, I am not an imager, but I think in this in this day and age any globular cluster with a burnt out core stinks:rolleyes:
If I can resolve the core with my telescope then with modern imageing equipment it should be resolved:)
I will not even bother looking too much at an image of a globular cluster with the guts burnt out:mad2:
47 Tuc has a very interesting core and would be nice if it could be shown in good quality images:)

[marc4darkskies]

Lovely image Peter (of course). :thumbsup: Love the star colours - better than my version. But IMHO the short exposure doesn't convey the extent of the envelope of stars in this huge glob (cf my deeper version - layered with shorter exp to save the core).

Cheers, Marcus